273 Can't get too much timing - confused

It's a Commando engine but I'm not sure if the heads we're ever pulled and can't say what current compression is.

Yes TMM, you are correct. Joe built it for 36 total. At 36 total...if my timing light is good...the plugs look like it's getting much more. Can't remember what plugs I have in it now, but they are fairly new. I can pull one when I get home.

Oh, and I have a limit plate, but didn't put it back in the rebuilt distributor.